Bug 1456712 (CVE-2017-9287) - CVE-2017-9287 openldap: Double free vulnerability in servers/slapd/back-mdb/search.c
Summary: CVE-2017-9287 openldap: Double free vulnerability in servers/slapd/back-mdb/s...
Alias: CVE-2017-9287
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1456713 1458210
Blocks: 1456714
TreeView+ depends on / blocked
Reported: 2017-05-30 08:18 UTC by Adam Mariš
Modified: 2021-02-17 02:06 UTC (History)
16 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A double-free flaw was found in the way OpenLDAP's slapd server using the MDB backend handled LDAP searches. A remote attacker with access to search the directory could potentially use this flaw to crash slapd by issuing a specially crafted LDAP search query.
Clone Of:
Last Closed: 2019-06-08 03:13:37 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1852 0 normal SHIPPED_LIVE Moderate: openldap security, bug fix, and enhancement update 2017-08-01 18:22:49 UTC

Description Adam Mariš 2017-05-30 08:18:22 UTC
servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.

Upstream patch:


Comment 1 Adam Mariš 2017-05-30 08:18:51 UTC
Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1456713]

Comment 7 Dhiru Kholia 2017-06-05 12:41:01 UTC
External References:


Comment 10 Dhiru Kholia 2017-06-06 11:33:12 UTC

This issue does not affect the versions of OpenLDAP as shipped with Red Hat Enterprise Linux 6 and 7 as they don't use the affected MDB backend in their default configurations. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 12 errata-xmlrpc 2017-08-01 20:19:52 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1852 https://access.redhat.com/errata/RHSA-2017:1852

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